Selecting good laying hens for winter egg production
Bliss, R.K.
Selecting good laying hens for winter egg production - Ames 1922 - 1-4 p. - Hens, Egg, Production Iowa Agricultural Extension Service. Bulletin No. 70 .
Selecting good laying hens for winter egg production - Ames 1922 - 1-4 p. - Hens, Egg, Production Iowa Agricultural Extension Service. Bulletin No. 70 .